Yes, I have been having this problem for the past few weeks as well. It seems that alerts are delayed by hours. It is causing a big problem, since it may be hours before I receive a critical alert, like a water alarm, etc.

Did you find out why your were seeing these "Waiting to upload" messages? Is there any resolution?

Hate to post a reply that just says me to, but.... same here. Quite annoying. The only saving grace in my case is that I use the VeraAlerts plugin, which forwards alerts to a third-party app on my phone. As such, while the official vera alerts are delayed by hours, I *do* still get notified by said third-party app on-time.

The slew of old messages whenever I reboot 9or make any change that causes a Lua reload) is quite annoying, however. Would be nice to have a fix.